Monitor mode on alfa awus 1900

[Gold1406 (Naif mosad)]

Hi everyone
I can not put alfa awus 1900 on monitor mode
How i can solve it

[rowie]

Chipset Drivers are installed??

If yes then you have to set the monitor mode manually on the AWUS036ACH & AWUS1900

Set interface down /maybe you have to change wlan0

sudo ip link  set wlan0 down

Set monitor mode

sudo iwconfig wlan0 mode monitor

Set interface up

sudo ip link set wlan0 up

Confirm monitor mode

sudo iwconfig

wlan0 IEEE 802.11 Mode:Monitor

Test the card by sniffing nearby networks

sudo airodump-ng wlan0

Changing adapter back to manged mode

Set interface down

sudo ip link set wlan0 down

Set managed mode

sudo iwconfig wlan0 mode managed

Set interface up

sudo ip link set wlan0 up

source